Patent number: 5712298
Abstract: Compounds of formula (I), in which one of the substituents R1 or R2 stands for hydrogen, 1-6C-alkoxy, 3-7C-cycloalkoxy, 3-7C-cycloalkylmethoxy, benzyloxy or totally or partially fluorine-substituted 1-4C-alkoxy, and the other stands for totally or partially fluorine-substituted 1-4C-alkoxy, and R3 stands for phenyl, pyridyl, R31, R32 and R33-substituted phenyl or R34, R35, R36 and R37-substituted pyridyl, in which R31 stands for hydroxy, halogen, cyano, carboxyl, trifluoromethyl 1-4C-alkyl, 1-4C-alkoxy, 1-4C-alkoxycarbonyl, 1-4C-alkylcarbonyl, 1-4C-alkylcarbonyloxy, amino, mono- or di-1-4C-alkylamino or 1-4C-alkylcarbonylamino; R32 stands for hydrogen, hydroxy, halogen, amino, trifluoromethyl, 1-4C-alkyl or 1-4C-alkoxy; R33 stands for hydrogen, halogen, 1-4C-alkyl or 1-4C-alkoxy; R34 stands for hydroxy, halogen, cyano, carboxyl, 1-4C-alkyl, 1-4C-alkoxy, 1-4C-alkoxycarbonyl or amino; R35 stands for hydrogen, halogen, amino or 1-4C-alkyl; R36 stands for hydrogen or halogen; and R37 stands for hydrogen or haloge
Type:
Grant
Filed:
December 19, 1995
Date of Patent:
January 27, 1998
Assignee:
BYK Gulden Lomberg Chemische Fabrik GmbH
Inventor:
Hermann Amschler